Interstellar dust clouds, spinning through the spiral arms of the Milky Way, combine the smells of "crazy ice cream and knee-buckling ammonia", researchers believe. Meanwhile, in Sagittarius B2, a giant molecular cloud of gas and dust close to centre of our galaxy, you might smell "some of the prebiotic molecules that are necessary for life", says [scientist Marina] Barcenilla. "There we have things like ethanol, methanol, acetone, hydrogen sulphide and ethylene glycol – which you can use as antifreeze."
— Read more in From cat urine to gunpowder: Exploring the peculiar smells of outer space at BBC.
What a fascinating article, and surprising array of smells! Thanks for sharing this, Robin.
It is really interesting, and yes, what an array of odors!